Prob with rica

**shrekblackR** · Saturday 25th December 2010, 13:41

Hi all merry Christmas . I just put my new rica ecu in and the car runs really lumpy on tick over I'm using 99 octaine fuel any ideas cheers guys

**smithy** · Saturday 25th December 2010, 17:16

Originally Posted by shrek red t5

Hi all merry Christmas . I just put my new rica ecu in and the car runs really lumpy on tick over I'm using 99 octaine fuel any ideas cheers guys

is the number on the ecu the same as yours mate and is yours manual or auto

**shrekblackR** · Saturday 25th December 2010, 17:57

Yes mate same numbers and it is auto . It goes like stink just a bit lumpy on tick over

**Santa** · Saturday 25th December 2010, 19:10

Assume the lumpy idle goes away if you put the original ECU back in?

**shrekblackR** · Saturday 25th December 2010, 19:58

Originally Posted by santa20

Assume the lumpy idle goes away if you put the original ECU back in?

Yes mate

**shrekblackR** · Saturday 25th December 2010, 20:00

Also it is tesco 99 fuel and not shell don't know if this will make a difference

**Dangerous Dave** · Saturday 25th December 2010, 20:07

Tesco 99 fuel shouldn't make a difference at idle.

**The Flying Moose** · Saturday 25th December 2010, 21:33

Originally Posted by shrek red t5

Also it is tesco 99 fuel and not shell don't know if this will make a difference

AS bomb says wouldnt make a difference until thrashing the car at idle they would run happily on 95 chipped so I certainly wouldnt consider the fuel.

As you have said it is fine with the normal ecu you can pretty much rule out fueling/vacuum leak. How is the car to drive in general with the Rica?

I would suggest its a faulty ecu from what you have said but wouldnt put money on it. Im also assuming its a second hand unit so no comeback from a garage with replacements.

**t5_monkey** · Saturday 25th December 2010, 23:42

If the problem goes away when replacing the ECU... I would think the ECU is the culprit here...

Does the car drive well with the ECU through the rev range...? if it's just idle and only with the uprated ECU sounds a bit of a mysterious software issue.

I know that the MAF sensor can sometimes cause a lumpy idle if it's tired, but I'm clutching at straws here

**Dangerous Dave** · Sunday 26th December 2010, 00:23

Could be a glitch in the new software not controlling the idle valve correctly too.

**woody** · Sunday 26th December 2010, 01:06

Hi mate, as T5_Monkey said, if the MAF/MAP (what ever you want to call em) sensor is on its last legs, it will produce bizarre eng probs, e.g from non-idle to non-acceleration. I must ask though, did this ECU work properly in its original application?

**shrekblackR** · Sunday 26th December 2010, 16:14

Originally Posted by woody

Hi mate, as T5_Monkey said, if the MAF/MAP (what ever you want to call em) sensor is on its last legs, it will produce bizarre eng probs, e.g from non-idle to non-acceleration. I must ask though, did this ECU work properly in its original application?

Apparently it worked perfect in old car same year and model as mine . But only seems to be bad when cold first thing after that it runs fine and like a rocket boosting at around 15 psi .. Still a bit lumpy when warm but don't cut out . Arrggg I give up

**LiamT4** · Sunday 26th December 2010, 16:20

Just need to make sure of something, if you put the normal ecu back in, it runs a1 even when thrashing it?

**shrekblackR** · Sunday 26th December 2010, 16:40

Originally Posted by LiamT4

Just need to make sure of something, if you put the normal ecu back in, it runs a1 even when thrashing it?

Yes mate no probs at all with old one in

**t5_monkey** · Sunday 26th December 2010, 21:33

Originally Posted by shrek red t5

Yes mate no probs at all with old one in

Try the ECU in a different car to see if you can recreate the fault?

**turbo-tuner** · Sunday 26th December 2010, 22:22

Originally Posted by shrek red t5

Apparently it worked perfect in old car same year and model as mine.

Are you 100% sure that the car this ECU came from is identical to yours in every way? For example, are the injectors the same?

**LiamT4** · Sunday 26th December 2010, 22:27

Originally Posted by turbo-tuner

Are you 100% sure that the car this ECU came from is identical to yours in every way? For example, are the injectors the same?

Thats a very good point. Double check that the car it came off definatly has the same turbo and injectors.

**shrekblackR** · Tuesday 28th December 2010, 14:17

Well it's been in the car for 3 days and has seemed to sort itself out and now runs like a dream . But many thanks for all your help guys

**p fandango** · Tuesday 28th December 2010, 15:03

Originally Posted by shrek red t5

Well it's been in the car for 3 days and has seemed to sort itself out and now runs like a dream . But many thanks for all your help guys

sounds like the ecu's adaption just needed to learn about your car, mine won't even idle for the first few times you crank it over

**shrekblackR** · Friday 7th January 2011, 07:59

Hi guys got another prob with this rica ecu . On my way home last night my boost went back to standard . Any ideas cheers guys

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